Author(s)

J.L. Oliver & F.J. Fuenmayor

Abstract

Analysis of the effectivity of the Zienkiewicz-Zhu error estimator J.L. Oliver, F.J. Fuenmayor Dpto. Ingenieria Mecdnica y de Materiales, Universidad Politenica de Valencia, Cno. de Vera s/n, 4^022 Valencia, Spain INTRODUCTION One necessary component in an automated, adaptive finite element modeling system is the error estimating algorithm. Although the reliability of the finite elements solution to engineering problems is influenced by several types of errors, the discretization error is perhaps the most important. The discretization error represents the difference between the exact and the approximate solution obtained by finite elements (FE), without taking into account the round off errors. The exact evaluation of the discretization error is, of course, impossible without an exact solution being available, which will not be for most of the practical problems. However, even when the exact solution is not available, it is possible to construct q

Keywords